The MB BF90 should not be a disappointment, you say the Maintenance cost were high what did you base this on? The only maintenance cost should be on Belts and small wear parts that are inexpensive and quick and easy to change.

It sounds like you may have been using the Bucket Crusher incorrectly.

The magnets are an excellent partner for the crushers it keeps up the health and safety, e.g. keeps people in cabs and away from plucking the steel out of the crushed piles. As the Bucket Crushers have been built as totally a one man one machine.

If the angle of the mouth were opened as you mentioned the product would be to big to pass through the jaws and then you would have to tip out the product and start the process again. The Mouth is 900mm wide right through the jaws, thus if it fits in the mouth it will be crushed. Regards to the hoses maybe the hoses were to long, they sound as though they should be shortened with just enough room to fully crowd the bucket both ways not extremely tight but enough to not become a problem with rebar. We use protective grading on all our hoses that helps the wear and tear also.

These crushers have a wide range of use, they can be working on a demo site one day and the next they can be crushing in a quarry crushing rotten rock for dairy farm tracks. These do handle the concrete rail way sleepers even though the sleepers have stress wire and create havoc through ever traditional jaw crusher. The BF70 can do two sleepers in under 30seconds which is effortless.

Hi guys,

Just some info for you re the bucket crushers...

The BF120 (the largest model) can process up to 50m3 per hour and will go on a 30-35 tonne excavator. There are three other smaller models as well.

Check out http://www.bucketcrusher.co.nz for more details... they now have a "heavy duty" version of both the BF90 and BF120 and some videos as well if you would rather see a demo of them working.

Here is one of a bucket crusher being used to crush a power pole, pretty impressive.

I am using the Red Rhino Crusher's and I love them.

1,Mini Mobile Crushers for the Building Industry : Red Rhino Crushers 2,Red Rhino Crushers

You have to be careful in using a jaw crusher as your primary and finishing crusher. Jaw crushers make a very slender, elongated product. This is fine for some farmer or some company who has a very, very loose spec.

Typically, jaw crushers are used as primaries that feed a secondary crusher which does the final shaping and sizing.

The best "bang for your buck" crusher would a horizontal shaft impact crusher. It has a high reduction ratio, excellent particle shape, and you can recirculate oversize off a screen and send it back to the crusher. The big disadvantage to a HSI is the operating costs ($.10 to $.25 per ton) and maintenance. Even a small 40"x34" HSI can reduce 20" concrete to -3" (90% under -1") at a rate of 75-100TPH.

Of course, if money was no object, you would run jaw crusher to screen to cone and back to the screen.